2.) Enter the correct number of electrons in the corresponding blanks:

3.)Enter the correct number of protons and electrons in the corresponding blanks:

4.)

For each of the following Atomic Numbers, enter the correct corresponding element symbol and charge:

Capitalization counts!  The element symbol is case sensitive.

You must include the + or - sign for your charge to be counted correct.

When asked to enter the charge of the ion, you must enter the number along with the + or - for your answer to counted correct.  Just entering a + or - with no number implies a charge of 1+ or 1-.  So, if you end up with two more protons than electrons, you must enter the value as 2+ (or +2; I have set up the assignment to accept either ).

5.)

Enter the correct number of protons, neutrons, and electrons for the given ion: